/*
    GNU LESSER GENERAL PUBLIC LICENSE
    Copyright (C) 2006 The XAMJ Project

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Contact info: lobochief@users.sourceforge.net
*/
package org.lobobrowser.html.style;

import org.lobobrowser.html.domimpl.HTMLElementImpl;
import java.awt.Insets;;

public abstract class AbstractMarginRenderState extends BlockRenderState {
    public AbstractMarginRenderState(RenderState prevRenderState,
            HTMLElementImpl element) {
        super(prevRenderState, element);
    }
    
    protected abstract HtmlInsets getDefaultMarginInsets();

    public HtmlInsets getMarginInsets() {
        HtmlInsets insets = this.marginInsets;
        if(insets != INVALID_INSETS) {
            return insets;
        }
        insets = super.getMarginInsets();
        if(insets == null) {
            insets = this.getDefaultMarginInsets();
        }
        this.marginInsets = insets;
        return insets;
    }

    
    
}
